/*
 * Copyright 2017-2020 original authors
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * https://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package io.micronaut.docs.config.immutable;

import io.micronaut.context.annotation.Requires;
import jakarta.inject.Singleton;

@Requires(property = "spec.name", value = "VehicleImmutableSpec")
// tag::class[]
@Singleton
public class Engine {
    private final EngineConfig config;

    public Engine(EngineConfig config) {// <1>
        this.config = config;
    }

    public int getCylinders() {
        return config.getCylinders();
    }

    public String start() {// <2>
        return getConfig().getManufacturer() + " Engine Starting V" + getConfig().getCylinders() +
                " [rodLength=" + getConfig().getCrankShaft().getRodLength().orElse(6.0d) + "]";
    }

    public final EngineConfig getConfig() {
        return config;
    }
}
// end::class[]
